Obviously, the current hot topic in HTPC land is Hauppauge’s upcoming HD PVR… And I just heard back from multi-OS SageTV CEO, Mike Machado regarding their integration plans:
We’re working to support the HD PVR as soon as we can. We expect we’ll support it at or near launch.
I didn’t probe too deeply (hey, it’s the weekend), but I assume the PC version of SageTV’s DVR software would receive support first. Not to mention, support is probably dependent upon the drivers Hauppauge provides. (Their specs page isn’t OS-specific, though the safe money’s solely on Windows.)